Chassis for bicycles and motorcycles



FIG. 1 is a front perspective view of a chassis for bicycles and motorcycles showing the new design;

FIG. 2 is a right lateral view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left lateral view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a chassis for bicycles and motorcycles, as shown and described. 